Recently I pumped my harley to a 95 inch from an 88 inch?

Question

Now It is not as load as it was before I notice as well as my friends The work was done my a reputible shop I asked them and they are unsure of why.But Ive had several friends tell me it is not as load and it used to thump harder too.

Answer 1

I'm thinking that you might need a bigger air intake.  Maybe there's low compression happening.  

Answer 2

This might explain it to you.  

http://en.wikipedia.org/wiki/Twin_Cam_en...